A421/A421M
A421/A421M (Standard Specification for Stress-Relieved Steel Wire for Prestressed Concrete)· ASTM (United States) · 2 materials
| Designation | Material group | |
|---|---|---|
| A 421 Type BA | Structural and constructional steels | chevron_right |
| A 421 Type WA | Structural and constructional steels | chevron_right |